To be honest I can't see there being many. At the current time the only other person I could have seen in the keeping/reserve keeper role for this series is Davies.
Youngsters coming through, I'm not sure about many other counties but at Hampshire we have Adam Wheater who is looking good but in a very similar to England in a way that he is pushing out Michael Bates who from what I've seen of him is the best glovesman in the country, but unfortunately is still in the process of improving his batting. Again similar to England, in some games we've had Wheater in purely as a batsman with Bates keeping.
Sam Billings at Kent is very well regarded in this part of the world. Atherton also really rates him as one of the best young keeper/batsmen he has seen. In my view he should have replaced Garient Jones last season with the gloves.
The best keeper in the country by a mile is James Foster and he is arguably the best keeper, consistently in the world in my opinion especially standing up which at times is not Priors strongest suit. But we all know world cricket dictates you have to have a batsmen keeper, even in test cricket now a days.